<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>案例-头像上传</title>
    <link rel="stylesheet" href="./lib/bootstrap-v4.6.0.css" />
    <style>
      .thumb-box {
        text-align: center;
        margin-top: 50px;
      }

      .thumb {
        width: 150px;
        height: 150px;
        object-fit: cover;
        border-radius: 50%;
      }
    </style>
  </head>

  <body>
    <div class="thumb-box">
      <!-- 头像 -->
      <img src="./images/cover.jpg" class="img-thumbnail thumb" alt="" />
      <div class="mt-2">
        <!-- 文件选择框 -->
        <!-- accept 属性表示可选择的文件类型 -->
        <!-- image/* 表示只允许选择图片类型的文件 -->
        <input type="file" id="iptFile" accept="image/*" style="display: none" />
        <!-- 选择头像图片的按钮 -->
        <button class="btn btn-primary" id="btnChoose">选择 & 上传图片</button>
      </div>
    </div>
    <script src="./lib/axios.js"></script>
    <script>
      // 功能
      const but = document.querySelector('#btnChoose');
      const inputFile = document.querySelector('#iptFile');
      const img = document.querySelector('.thumb');

      but.addEventListener('click',function(){
        inputFile.click()
      })

      inputFile.addEventListener('change',function(){
        // console.log(1);
        // console.log(inputFile.files[0]);
        if(!inputFile.files[0]) return alert('请选择图片')

        const fd = new FormData()
        fd.append('avatar',inputFile.files[0])

        axios({
          url:'http://ajax-api.itheima.net/api/file',
          method:'POST',
          data:fd
        }).then(({data:res})=>{
          console.log(res);
          const url = res.data.url
          img.src = url
        })


      })


      
    </script>
  </body>
</html>
